Update app.py

app.py

@@ -43,6 +43,12 @@ if 'selected_difficulty' not in st.session_state:
 if 'exclusions' not in st.session_state:
     st.session_state.exclusions = None
 
+def preprocess_text(text):
+    # Remove non-alphabet characters and extra spaces
+    text = re.sub(r'[^a-zA-Z\s]', '', text)
+    text = re.sub(r'\s+', ' ', text).strip()
+    return text.lower()
+
 def get_recommendations(user_description, count_vectorizer, count_matrix):
     user_description = preprocess_text(user_description)
     user_vector = count_vectorizer.transform([user_description])